| A | B |
|---|
| GLACIER | THICK SHEETS OF ICE |
| IRRIGATION | A METHOD TO WATER CROPS BY CHANNELING WATER FROM RIVERS |
| SURPLUS | EXTRA |
| CIVILIZATION | ADVANCED CULTURE IN WHICH PEOPLE HAVE DEVELOPED CITIES,SCIENCE AND INDUSTRIES |
| CULTURE | WAYS OF LIFE |
| CULTURE AREA | REGIONS IN WHICH GROUPS OF PEOPLE HAVE SIMILAR WAY OF LIFE |
| KAYAK | SMALL BOAT MADE FROM SKINS |
| POTLATCH | A CEREMONT AT WHICH THE HOSTS SHOWERED THEIR GUESTS WITH GIFTS |
| ADOBE | SUN-DRIED BRICK |
| SACHEM | TRIBAL CHIEF |
| CLANS | GROUPS OF FAMILIES THAT ARE RELATED TO ONE ANOTHER |
| NAVIGATION | THE SCIENCE OF LOCATING THE POSITION AND PLOTTING THE COURSE OF SHIPS |
| MONOTHEISM | THE IDEA THAT THERE IS ONLY ONE GOD |
| SALVATION | EVERLASTING LIFE |
| DIRECT DEMOCRACY | A FORM OF GOVERNMENT IN WHICH AN ASSEMBLY OF ORDINARY CITIZENS MAKES DECISIONS |
| REPUBLIC | A OVERNMENT IN WHICH PEOPLE CHOOSE REPRESENTATIVES TO GOVERN THEMFORM OF G |
| FEUDALISM | A SYSTEM IN WHICH A RULER GRANTS PARTS OF HIS LAND TO LORDS |
